1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Wang at The University of California, Berkeley. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)ww.h 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/ww.h,v 1.3.12.1 2001/05/17 09:45:01 obrien Exp $ 38 */ 39 40 #ifdef OLD_TTY 41 #include <sgtty.h> 42 #else 43 #include <termios.h> 44 #endif 45 #include <setjmp.h> 46 #include <machine/endian.h> 47 48 #define NWW 30 /* maximum number of windows */ 49 50 /* a rectangle */ 51 struct ww_dim { 52 int nr; /* number of rows */ 53 int nc; /* number of columns */ 54 int t, b; /* top, bottom */ 55 int l, r; /* left, right */ 56 }; 57 58 /* a coordinate */ 59 struct ww_pos { 60 int r; /* row */ 61 int c; /* column */ 62 }; 63 64 /* the window structure */ 65 struct ww { 66 /* general flags and states */ 67 char ww_state; /* state of window */ 68 char ww_oflags; /* wwopen flags */ 69 70 /* information for overlap */ 71 struct ww *ww_forw; /* doubly linked list, for overlapping info */ 72 struct ww *ww_back; 73 char ww_index; /* the window index, for wwindex[] */ 74 char ww_order; /* the overlapping order */ 75 76 /* sizes and positions */ 77 struct ww_dim ww_w; /* window size and pos */ 78 struct ww_dim ww_b; /* buffer size and pos */ 79 struct ww_dim ww_i; /* the part inside the screen */ 80 struct ww_pos ww_cur; /* the cursor position, relative to ww_w */ 81 82 /* arrays */ 83 char **ww_win; /* the window */ 84 union ww_char **ww_buf; /* the buffer */ 85 char **ww_fmap; /* map for frame and box windows */ 86 short *ww_nvis; /* how many ww_buf chars are visible per row */ 87 88 /* information for wwwrite() and company */ 89 char ww_wstate; /* state for outputting characters */ 90 char ww_modes; /* current display modes */ 91 char ww_insert; /* insert mode */ 92 char ww_mapnl; /* map \n to \r\n */ 93 char ww_noupdate; /* don't do updates in wwwrite() */ 94 char ww_unctrl; /* expand control characters */ 95 char ww_nointr; /* wwwrite() not interruptable */ 96 char ww_hascursor; /* has fake cursor */ 97 98 /* things for the window process and io */ 99 char ww_ispty; /* ww_pty is really a pty, not socket pair */ 100 char ww_stopped; /* output stopped */ 101 int ww_pty; /* file descriptor of pty or socket pair */ 102 int ww_socket; /* other end of socket pair */ 103 int ww_pid; /* pid of process, if WWS_HASPROC true */ 104 char ww_ttyname[11]; /* "/dev/ttyp?" */ 105 char *ww_ob; /* output buffer */ 106 char *ww_obe; /* end of ww_ob */ 107 char *ww_obp; /* current read position in ww_ob */ 108 char *ww_obq; /* current write position in ww_ob */ 109 110 /* things for the user, they really don't belong here */ 111 char ww_id; /* the user window id */ 112 char ww_center; /* center the label */ 113 char ww_hasframe; /* frame it */ 114 char ww_keepopen; /* keep it open after the process dies */ 115 char *ww_label; /* the user supplied label */ 116 struct ww_dim ww_alt; /* alternate position and size */ 117 }; 118 119 /* state of a tty */ 120 struct ww_tty { 121 #ifdef OLD_TTY 122 struct sgttyb ww_sgttyb; 123 struct tchars ww_tchars; 124 struct ltchars ww_ltchars; 125 int ww_lmode; 126 int ww_ldisc; 127 #else 128 struct termios ww_termios; 129 #endif 130 int ww_fflags; 131 }; 132 133 union ww_char { 134 short c_w; /* as a word */ 135 struct { 136 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN 137 char C_c; /* the character part */ 138 char C_m; /* the mode part */ 139 #endif 140 #if BYTE_ORDER == BIG_ENDIAN 141 char C_m; /* the mode part */ 142 char C_c; /* the character part */ 143 #endif 144 } c_un; 145 }; 146 #define c_c c_un.C_c 147 #define c_m c_un.C_m 148 149 /* for display update */ 150 struct ww_update { 151 int best_gain; 152 int best_col; 153 int gain; 154 }; 155 156 /* parts of ww_char */ 157 #define WWC_CMASK 0x00ff 158 #define WWC_MMASK 0xff00 159 #define WWC_MSHIFT 8 160 161 /* c_m bits */ 162 #define WWM_REV 0x01 /* reverse video */ 163 #define WWM_BLK 0x02 /* blinking */ 164 #define WWM_UL 0x04 /* underlined */ 165 #define WWM_GRP 0x08 /* graphics */ 166 #define WWM_DIM 0x10 /* half intensity */ 167 #define WWM_USR 0x20 /* user specified mode */ 168 #define WWM_GLS 0x40 /* window only, glass, i.e., transparent */ 169 170 /* ww_state values */ 171 #define WWS_INITIAL 0 /* just opened */ 172 #define WWS_HASPROC 1 /* has process on pty */ 173 #define WWS_DEAD 3 /* child died */ 174 175 /* flags for ww_fmap */ 176 #define WWF_U 0x01 177 #define WWF_R 0x02 178 #define WWF_D 0x04 179 #define WWF_L 0x08 180 #define WWF_MASK (WWF_U|WWF_R|WWF_D|WWF_L) 181 #define WWF_LABEL 0x40 182 #define WWF_TOP 0x80 183 184 /* flags to wwopen() */ 185 #define WWO_PTY 0x01 /* want pty */ 186 #define WWO_SOCKET 0x02 /* want socket pair */ 187 #define WWO_REVERSE 0x04 /* make it all reverse video */ 188 #define WWO_GLASS 0x08 /* make it all glass */ 189 #define WWO_FRAME 0x10 /* this is a frame window */ 190 191 /* special ww_index value */ 192 #define WWX_NOBODY NWW 193 194 /* error codes */ 195 #define WWE_NOERR 0 196 #define WWE_SYS 1 /* system error */ 197 #define WWE_NOMEM 2 /* out of memory */ 198 #define WWE_TOOMANY 3 /* too many windows */ 199 #define WWE_NOPTY 4 /* no more ptys */ 200 #define WWE_SIZE 5 /* bad window size */ 201 #define WWE_BADTERM 6 /* bad terminal type */ 202 #define WWE_CANTDO 7 /* dumb terminal */ 203 204 /* wwtouched[] bits, there used to be more than one */ 205 #define WWU_TOUCHED 0x01 /* touched */ 206 207 /* the window structures */ 208 struct ww wwhead; 209 struct ww *wwindex[NWW + 1]; /* last location is for wwnobody */ 210 struct ww wwnobody; 211 212 /* tty things */ 213 struct ww_tty wwoldtty; /* the old (saved) terminal settings */ 214 struct ww_tty wwnewtty; /* the new (current) terminal settings */ 215 struct ww_tty wwwintty; /* the terminal settings for windows */ 216 char *wwterm; /* the terminal name */ 217 char wwtermcap[1024]; /* place for the termcap */ 218 219 /* generally useful variables */ 220 int wwnrow, wwncol; /* the screen size */ 221 char wwavailmodes; /* actually supported modes */ 222 char wwcursormodes; /* the modes for the fake cursor */ 223 char wwwrap; /* terminal has auto wrap around */ 224 int wwdtablesize; /* result of getdtablesize() call */ 225 char **wwsmap; /* the screen map */ 226 union ww_char **wwos; /* the old (current) screen */ 227 union ww_char **wwns; /* the new (desired) screen */ 228 union ww_char **wwcs; /* the checkpointed screen */ 229 char *wwtouched; /* wwns changed flags */ 230 struct ww_update *wwupd; /* for display update */ 231 int wwospeed; /* output baud rate, copied from wwoldtty */ 232 int wwbaud; /* wwospeed converted into actual number */ 233 int wwcursorrow, wwcursorcol; /* where we want the cursor to be */ 234 int wwerrno; /* error number */ 235 236 /* statistics */ 237 int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc; 238 int wwnwwr, wwnwwra, wwnwwrc; 239 int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc; 240 int wwnupdate, wwnupdline, wwnupdmiss; 241 int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline; 242 int wwnread, wwnreade, wwnreadz; 243 int wwnreadc, wwnreadack, wwnreadnack, wwnreadstat, wwnreadec; 244 int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp; 245 int wwnselect, wwnselecte, wwnselectz; 246 247 /* quicky macros */ 248 #define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c)) 249 #define wwcurtowin(w) wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c) 250 #define wwunbox(w) wwunframe(w) 251 #define wwclreol(w,r,c) wwclreol1((w), (r), (c), 0) 252 #define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0) 253 #define wwupdate() wwupdate1(0, wwnrow); 254 255 /* things for handling input */ 256 void wwrint(); /* interrupt handler */ 257 struct ww *wwcurwin; /* window to copy input into */ 258 char *wwib; /* input (keyboard) buffer */ 259 char *wwibe; /* wwib + sizeof buffer */ 260 char *wwibp; /* current read position in buffer */ 261 char *wwibq; /* current write position in buffer */ 262 #define wwmaskc(c) ((c) & 0xff) 263 #define wwgetc() (wwibp < wwibq ? wwmaskc(*wwibp++) : -1) 264 #define wwpeekc() (wwibp < wwibq ? wwmaskc(*wwibp) : -1) 265 #define wwungetc(c) (wwibp > wwib ? *--wwibp = (c) : -1) 266 267 /* things for short circuiting wwiomux() */ 268 char wwintr; /* interrupting */ 269 char wwsetjmp; /* want a longjmp() from wwrint() and wwchild() */ 270 jmp_buf wwjmpbuf; /* jmpbuf for above */ 271 #define wwinterrupt() wwintr 272 #define wwsetintr() do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \ 273 while (0) 274 #define wwclrintr() (wwintr = 0) 275 276 /* checkpointing */ 277 int wwdocheckpoint; 278 279 /* the window virtual terminal */ 280 #define WWT_TERM "window-v2" 281 #define WWT_TERMCAP "WW|window-v2|window program version 2:\ 282 :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\ 283 :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\ 284 :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:" 285 #define WWT_REV "se=\\ErA:so=\\EsA:mr=\\EsA:" 286 #define WWT_BLK "BE=\\ErB:BS=\\EsB:mb=\\EsB:" 287 #define WWT_UL "ue=\\ErD:us=\\EsD:" 288 #define WWT_GRP "ae=\\ErH:as=\\EsH:" 289 #define WWT_DIM "HE=\\ErP:HS=\\EsP:mh=\\EsP:" 290 #define WWT_USR "XE=\\Er`:XS=\\Es`:" 291 #define WWT_ALDL "al=\\EL:dl=\\EM:" 292 #define WWT_IMEI "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */ 293 #define WWT_IC "ic=\\EP:" 294 #define WWT_DC "dc=\\EN:" 295 char wwwintermcap[1024]; /* terminal-specific but window-independent 296 part of the window termcap */ 297 #ifdef TERMINFO 298 /* where to put the temporary terminfo directory */ 299 char wwterminfopath[1024]; 300 #endif 301 302 /* our functions */ 303 struct ww *wwopen(); 304 void wwchild(); 305 void wwalarm(); 306 void wwquit(); 307 char **wwalloc(); 308 char *wwerror(); 309 310 /* c library functions */ 311 char *getenv(); 312 char *tgetstr(); 313 char *rindex(); 314 char *strcpy(); 315 char *strcat(); 316 317 #undef MIN 318 #undef MAX 319 #define MIN(x, y) ((x) > (y) ? (y) : (x)) 320 #define MAX(x, y) ((x) > (y) ? (x) : (y)) 321